Must be a US citizen:
Must be currently in the US military or have an honorable discharge 
Must have served overseas during a conflict for which you received an expeditionary medal, a campaign medal or ribbon, or imminent danger/hostile fire pay
                
                and/or
Received the SSBN Deterrent Patrol Insignia, the Combat Infantryman Badge (CIB), the Combat Medic Badge (CMB), the Combat Action Ribbon (CAR), the Combat Action Badge (CAB), the Air Force Combat Action Medal (AFCAM), or Air Force Expeditionary Service Ribbon (with Gold Border) 
 
                 and/or
Served 30 consecutive days duty in Korea or 60 days of non-consecutive duty in Korea 
 
                 and/or
Be currently deployed in an area that qualifies for VFW membership.

Cost: 
Cost for annual memberships vary by post. Costs to become a member vary by the state or overseas location in which you sign up but average $35 per year. 
 
Annual Renewal:
For those choosing annual membership,  remember, the VFW membership year runs from January 1 to December 31. Those signing up January 1 to June 30 will have their first year's membership good through December of that year; those signing up July 1 or later will have their first year's membership good through December 31 of the following year. (Example: Sign up 1 May 2010 and your membership will be good through December 2010; sign up 1 August 2010 and your membership will be good through December 2011.)